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<html><head><title>Python: module telemetry.web_perf.metrics.layout</title>
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<td valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong><a href="telemetry.html"><font color="#ffffff">telemetry</font></a>.<a href="telemetry.web_perf.html"><font color="#ffffff">web_perf</font></a>.<a href="telemetry.web_perf.metrics.html"><font color="#ffffff">metrics</font></a>.layout</strong></big></big></font></td
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><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/web_perf/metrics/layout.py">telemetry/web_perf/metrics/layout.py</a></font></td></tr></table>
    <p><tt>#&nbsp;Copyright&nbsp;2014&nbsp;The&nbsp;Chromium&nbsp;Authors.&nbsp;All&nbsp;rights&nbsp;reserved.<br>
#&nbsp;Use&nbsp;of&nbsp;this&nbsp;source&nbsp;code&nbsp;is&nbsp;governed&nbsp;by&nbsp;a&nbsp;BSD-style&nbsp;license&nbsp;that&nbsp;can&nbsp;be<br>
#&nbsp;found&nbsp;in&nbsp;the&nbsp;LICENSE&nbsp;file.</tt></p>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
    
<tr><td bgcolor="#aa55cc"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="telemetry.web_perf.metrics.single_event.html">telemetry.web_perf.metrics.single_event</a><br>
</td><td width="25%" valign=top></td><td width="25%" valign=top></td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
    
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<dt><font face="helvetica, arial"><a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a>(<a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a>)
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<dt><font face="helvetica, arial"><a href="telemetry.web_perf.metrics.layout.html#LayoutMetric">LayoutMetric</a>
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<font color="#000000" face="helvetica, arial"><a name="LayoutMetric">class <strong>LayoutMetric</strong></a>(<a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a>)</font></td></tr>
    
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<td colspan=2><tt>Reports&nbsp;directly&nbsp;durations&nbsp;of&nbsp;FrameView::performLayout&nbsp;events.<br>
&nbsp;<br>
&nbsp;&nbsp;layout:&nbsp;Durations&nbsp;of&nbsp;FrameView::performLayout&nbsp;events&nbsp;that&nbsp;were&nbsp;caused&nbsp;by&nbsp;and<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;start&nbsp;during&nbsp;user&nbsp;interaction.<br>
&nbsp;<br>
Layout&nbsp;happens&nbsp;no&nbsp;more&nbsp;than&nbsp;once&nbsp;per&nbsp;frame,&nbsp;so&nbsp;per-frame-ness&nbsp;is&nbsp;implied.<br>&nbsp;</tt></td></tr>
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<td width="100%"><dl><dt>Method resolution order:</dt>
<dd><a href="telemetry.web_perf.metrics.layout.html#LayoutMetric">LayoutMetric</a></dd>
<dd><a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a></dd>
<dd><a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a></dd>
<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
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Methods defined here:<br>
<dl><dt><a name="LayoutMetric-__init__"><strong>__init__</strong></a>(self)</dt></dl>

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Methods inherited from <a href="telemetry.web_perf.metrics.single_event.html#_SingleEventMetric">telemetry.web_perf.metrics.single_event._SingleEventMetric</a>:<br>
<dl><dt><a name="LayoutMetric-AddResults"><strong>AddResults</strong></a>(self, _model, renderer_thread, interactions, results)</dt></dl>

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Methods inherited from <a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a>:<br>
<dl><dt><a name="LayoutMetric-AddWholeTraceResults"><strong>AddWholeTraceResults</strong></a>(self, model, results)</dt><dd><tt>Computes&nbsp;and&nbsp;adds&nbsp;metrics&nbsp;corresponding&nbsp;to&nbsp;the&nbsp;entire&nbsp;trace.<br>
&nbsp;<br>
Override&nbsp;this&nbsp;method&nbsp;to&nbsp;compute&nbsp;results&nbsp;that&nbsp;correspond&nbsp;to&nbsp;the&nbsp;whole&nbsp;trace.<br>
&nbsp;<br>
Args:<br>
&nbsp;&nbsp;model:&nbsp;An&nbsp;instance&nbsp;of&nbsp;telemetry.timeline.model.TimelineModel.<br>
&nbsp;&nbsp;results:&nbsp;An&nbsp;instance&nbsp;of&nbsp;page.PageTestResults.</tt></dd></dl>

<dl><dt><a name="LayoutMetric-VerifyNonOverlappedRecords"><strong>VerifyNonOverlappedRecords</strong></a>(self, interaction_records)</dt><dd><tt>This&nbsp;raises&nbsp;exceptions&nbsp;if&nbsp;interaction_records&nbsp;contain&nbsp;overlapped&nbsp;ranges.</tt></dd></dl>

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Data descriptors inherited from <a href="telemetry.web_perf.metrics.timeline_based_metric.html#TimelineBasedMetric">telemetry.web_perf.metrics.timeline_based_metric.TimelineBasedMetric</a>:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>dictionary&nbsp;for&nbsp;instance&nbsp;variables&nbsp;(if&nbsp;defined)</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>list&nbsp;of&nbsp;weak&nbsp;references&nbsp;to&nbsp;the&nbsp;object&nbsp;(if&nbsp;defined)</tt></dd>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
    
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<td width="100%"><strong>EVENT_NAME</strong> = 'FrameView::performLayout'<br>
<strong>METRIC_NAME</strong> = 'layout'</td></tr></table>
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